Fix build warnings

Fix various minor build warnings:

  lib/pb-protocol/pb-protocol.c:72: warning: comparison between signed and unsigned
  lib/pb-protocol/pb-protocol.c:78: warning: comparison between signed and unsigned
  lib/pb-protocol/pb-protocol.c:141: warning: unused parameter 'buf_len'
  lib/pb-protocol/pb-protocol.c:241: warning: comparison between signed and unsigned
  discover/pb-discover.c:14: warning: no previous prototype for 'sigint_handler'
  discover/pb-discover.c:13: warning: unused parameter 'signum'
  discover/log.c:22: warning: no previous prototype for 'pb_log_set_stream'
  discover/discover-server.c:159: warning: no previous prototype for 'discover_server_notify_add'
  discover/discover-server.c:169: warning: no previous prototype for 'discover_server_notify_remove'
  discover/discover-server.c:179: warning: no previous prototype for 'discover_server_set_device_source'
  discover/discover-server.c:184: warning: no previous prototype for 'discover_server_init'
  discover/discover-server.c:229: warning: no previous prototype for 'discover_server_destroy'
  discover/device-handler.c:395: warning: comparison between signed and unsigned
  discover/paths.c:44: warning: comparison between signed and unsigned

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

6 files changed, 7 insertions, 4 deletions

diff --git a/discover/device-handler.c b/discover/device-handler.c
index c7e0227..8d3e877 100644
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -377,7 +377,7 @@ int device_handler_event(struct device_handler *handler,
 struct device_handler *device_handler_init(struct discover_server *server)
 {
 	struct device_handler *handler;
-	int i;
+	unsigned int i;
 
 	handler = talloc(NULL, struct device_handler);
 	handler->devices = NULL;
diff --git a/discover/discover-server.c b/discover/discover-server.c
index 8ec1949..8d72838 100644
--- a/discover/discover-server.c
+++ b/discover/discover-server.c
@@ -18,6 +18,7 @@
 #include "log.h"
 #include "waiter.h"
 #include "device-handler.h"
+#include "discover-server.h"
 
 struct discover_server {
 	int socket;
diff --git a/discover/log.c b/discover/log.c
index 189f31e..e006fd0 100644
--- a/discover/log.c
+++ b/discover/log.c
@@ -1,6 +1,5 @@
 
 #include <stdarg.h>
-#include <stdio.h>
 
 #include "log.h"
 
diff --git a/discover/log.h b/discover/log.h
index 7f9b01f..3e92555 100644
--- a/discover/log.h
+++ b/discover/log.h
@@ -1,6 +1,9 @@
 #ifndef _LOG_H
 #define _LOG_H
 
+#include <stdio.h>
+
 void pb_log(const char *fmt, ...);
+void pb_log_set_stream(FILE *stream);
 
 #endif /* _LOG_H */
diff --git a/discover/paths.c b/discover/paths.c
index 72d07b2..5b550fa 100644
--- a/discover/paths.c
+++ b/discover/paths.c
@@ -35,7 +35,7 @@ const char *mount_base(void)
 char *encode_label(void *alloc_ctx, const char *label)
 {
 	char *str, *c;
-	int i;
+	unsigned int i;
 
 	/* the label can be expanded by up to four times */
 	str = talloc_size(alloc_ctx, strlen(label) * 4 + 1);
diff --git a/discover/pb-discover.c b/discover/pb-discover.c
index 024cb30..56602d9 100644
--- a/discover/pb-discover.c
+++ b/discover/pb-discover.c
@@ -10,7 +10,7 @@
 
 static int running;
 
-void sigint_handler(int signum)
+static void sigint_handler(int __attribute__((unused)) signum)
 {
 	running = 0;
 }